The starship Warden is a science ship dedicated to finding lost ships in space. It finds the derelict starship Bonnie Brown but hits an invisible asteroid while coming onto the ship. The asteroid fills the ship with alien gas, killing all the crew. It's now a year between the time the robots and the androids fight the alien menace and they are forced to crack open the sleep tubes of the combat troop humans still on the ship. So begins your character's life on the Warden.